scholarly journals Opportunistic Routing in Low Duty-Cycle Wireless Sensor Networks

2014 ◽  
Vol 10 (4) ◽  
pp. 1-39 ◽  
Author(s):  
Euhanna Ghadimi ◽  
Olaf Landsiedel ◽  
Pablo Soldati ◽  
Simon Duquennoy ◽  
Mikael Johansson
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Duty Cycle ◽  
Opportunistic Routing ◽  
Wireless Sensor ◽  
Low Duty Cycle

scholarly journals Minimizing Delay and Transmission Times with Long Lifetime in Code Dissemination Scheme for High Loss Ratio and Low Duty Cycle Wireless Sensor Networks

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3516 ◽  
Author(s):  
Wei Qi ◽  
Wei Liu ◽  
Xuxun Liu ◽  
Anfeng Liu ◽  
Tian Wang ◽  
...  
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Duty Cycle ◽  
Traditional Method ◽  
Wireless Sensor ◽  
Loss Ratio ◽  
High Loss ◽  
Low Duty Cycle ◽  
Code Dissemination ◽  
Long Lifetime

Software defined networks brings greater flexibility to networks and therefore generates new vitality. Thanks to the ability to update soft code to sensor nodes, wireless sensor networks (WSNs) brings profound changes to Internet of Things. However, it is a challenging issue to minimize delay and transmission times and maintain long lifetime when broadcasting data packets in high loss ratio and low duty cycle WSNs. Although there have been some research concerning code dissemination, those schemes can only achieve a tradeoff between different performances, instead of optimizing all these important performances at the same time. Therefore, in this paper we propose a new strategy that can reduce delay and transmission times simultaneously. In traditional method, the broadcasting nature of wireless communication is not sufficiently utilized. By allowing sons of the same parent node to share awake slots, the broadcasting nature is well exploited and delay is thus reduced as well as transmission times with lifetime not affected. And, as we discover there is energy surplus when collecting data in area away from sink, we further improve this strategy so that all the performances can be further bettered. Compared with traditional method, the methods we design (IFAS, BTAS and AAPS) can respectively reduce delay by 20.56%, 31.59%, 55.16% and reduce transmission times by 29.53%, 43.93%, 42.04%, while not reducing lifetime.

A Low Duty Cycle MAC Protocol for Directional Wireless Sensor Networks

2016 ◽  
Vol 96 (4) ◽  
pp. 5035-5059 ◽  
Author(s):  
Fernaz Narin Nur ◽  
Selina Sharmin ◽  
Md. Abdur Razzaque ◽  
Md. Shariful Islam ◽  
Mohammad Mehedi Hassan
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Duty Cycle ◽  
Mac Protocol ◽  
Wireless Sensor ◽  
Low Duty Cycle
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